157.203.56.0/24

AS21369 · Atos IT Services UK Ltd

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Summary

Country	United Kingdom
Domain	atos.net
ASN	AS21369
Registry	RIPE
ID	UK-ATOSUK-20070407

WHOIS Details

inetnum:        157.203.0.0 - 157.203.255.255
netname:        UK-ATOSUK-20070407
country:        GB
org:            ORG-AISU1-RIPE
admin-c:        ATOS5-RIPE
tech-c:         ATOS5-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SEMA-UK-AS-MNT
mnt-lower:      SEMA-UK-AS-MNT
mnt-routes:     SEMA-UK-AS-MNT
created:        2015-06-19T12:07:34Z
last-modified:  2023-01-04T11:09:51Z
source:         RIPE
abuse-email:    uk.abuse@atos.net
abuse-c:        AA30342-RIPE
abuse-org:      ORG-AISU1-RIPE

organisation:   ORG-AISU1-RIPE
org-name:       Atos IT Services UK Ltd
country:        GB
org-type:       LIR
address:        Second Floor, Mid City Place, 71 High Holborn,
address:        WC1V 6EA
address:        London
address:        UNITED KINGDOM
phone:          +448007833040
fax-no:         +441616018842
e-mail:         uk.abuse@atos.net
admin-c:        ATOS5-RIPE
tech-c:         ATOS5-RIPE
abuse-c:        AA30342-RIPE
mnt-by:         SEMA-UK-AS-MNT
mnt-ref:        SEMA-UK-AS-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2013-05-30T09:12:57Z
last-modified:  2022-12-16T16:54:22Z
source:         RIPE

role:           ATOS Admin
address:        3300 Solihull Parkway
address:        Birmingham Business Park
address:        B37 7YQ
e-mail:         UK.Abuse@atos.net
abuse-mailbox:  UK.Abuse@atos.net
nic-hdl:        ATOS5-RIPE
mnt-by:         SEMA-UK-AS-MNT
created:        2013-10-05T00:51:50Z
last-modified:  2013-10-05T03:40:17Z
source:         RIPE

route:          157.203.0.0/16
descr:          ATOS Origin IT
origin:         AS21369
mnt-by:         SEMA-UK-AS-MNT
created:        2005-02-04T15:58:50Z
last-modified:  2005-08-08T07:53:20Z
source:         RIPE

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

41 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
157.203.56.6	AS21369 Atos IT Services UK Ltd	`6.09ms` from London, GB

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
86.97.169.248	AS5384 Emirates Internet	`6.03ms` from Al Fujairah City, AE
138.43.184.120	AS395437 Highland Communications LLC	`8.86ms` from Atlanta, US
105.72.57.216	AS36884 Wana Corporate	`9.73ms` from Casablanca, MA
76.168.166.120	AS20001 Charter Communications Inc	`4.71ms` from Los Angeles, US
66.10.76.8	AS7018 AT&T Enterprises, LLC	`2.38ms` from Los Angeles, US
88.18.181.88	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.39ms` from Madrid, ES
79.22.75.24	AS3269 Telecom Italia S.p.A.	`17.18ms` from Milan, IT
74.105.218.8	AS701 Verizon Business	`1.36ms` from New York City, US
61.22.191.216	AS9824 JCOM Co., Ltd.	`19.35ms` from Osaka, JP
98.232.193.152	AS7922 Comcast Cable Communications, LLC	`5.80ms` from Portland, US
211.117.237.120	AS9318 SK Broadband Co Ltd	`7.66ms` from Seoul, KR
13.112.67.88	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
68.70.128.104	AS8134 Baraga Telephone Company	`13.41ms` from Chicago, US
2.207.80.216	AS3209 Vodafone GmbH	`4.51ms` from Duesseldorf, DE
89.143.67.56	AS5603 Telekom Slovenije, d.d.	`3.81ms` from Ljubljana, SI
76.88.21.120	AS20001 Charter Communications Inc	`5.77ms` from Los Angeles, US
2.229.112.232	AS12874 Fastweb SpA	`1.35ms` from Milan, IT
3.111.253.168	AS16509 Amazon.com, Inc.	`0.16ms` from Mumbai, IN
113.14.227.56	AS4134 CHINANET-BACKBONE	`0.47ms` from Nanning, CN
73.127.43.232	AS7922 Comcast Cable Communications, LLC	`5.20ms` from Salt Lake City, US
99.61.35.40	AS7018 AT&T Enterprises, LLC	`3.96ms` from San Antonio, US
200.104.203.168	AS22047 VTR BANDA ANCHA S.A.	`13.12ms` from Santiago, CL
117.184.110.24	AS24400 Shanghai Mobile Communications Co.,Ltd.	`3.13ms` from Shanghai, CN
89.42.141.248	AS42695 Cleura AB	`10.55ms` from Stockholm, SE
133.130.123.184	AS7506 GMO Internet Group, Inc.	`0.40ms` from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 157.203.56.31

traceroute to 157.203.56.31 (157.203.56.31): 64 hops max, 52 byte packets

4 [] 5.57.81.237 0.868 ms

5 [] 212.74.73.108 1.202 ms

6 [AS8220] 213.86.97.174 5.645 ms

7 *

8 *

9 *

10 [AS21369] 157.203.56.31 6.218 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 22nd 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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